MIDEAST MONEY-Saudi firms tighten controls in wake of Mobily scandal

* Regulators taking harder line before bourse opening

* Capital Market Authority, Commerce Ministry launch probes

* "Alarm bills ringing" at some listed firms

* Demand, fees for auditing services rise

* Pressure to clarify supervision of auditors

By Marwa Rashad and Hadeel Al Sayegh

RIYADH/DUBAI, April 5 (Reuters) - When Saudi Cable Co said last month it was delaying the release of its 2014 earnings statement, because it was still compiling information required by an external auditor, it was a sign of growing regulatory pressure on companies in the kingdom.

Regulators are signalling they want corporate managements to tighten governance and strengthen internal controls as the $500 billion Saudi stock market prepares to open up to direct foreign investment in the next few months.

The process has become more urgent since an accounting scandal erupted at telecommunications firm Mobily, which in February revised its 2014 earnings to a loss of $243 million from the $58.6 million profit previously claimed.

The Mobily affair, and the probe into it launched by the Capital Market Authority (CMA), have prompted many company managements, board members and even major shareholders to become more conscious of risk, executives and analysts say.

"What happened has set the alarm bills ringing and pushed board members to revise their roles, made investors carefully check financial statements, and caused company managements to review their accounts carefully," said Turki Fadaak, head of research and advisory services at AlBilad Capital in Riyadh.

"It has made us, the analysts, keen on meeting with company managements more often, and caused us to look more carefully at everything being said and everything that managements announce."

One sign of the new mood is that the fees charged by some auditors are rising as demand for their services grows.

"The risks associated with what happened to the listed companies have caused companies to raise their fees," said a partner at a regional auditing firm, speaking on condition of anonymity because of commercial sensitivities.

He added that his own firm's business had grown substantially in the last few months as some customers began to find fees charged by the big international auditors too steep.

Another sign of the regulatory pressure is a rise in fines levied by the CMA on listed companies for violations such as inadequate disclosure of information. They rose 46 percent from a year earlier to 1.83 million riyals ($488,000) in the first quarter of this year - not a huge burden for the companies involved, but a signal of the regulator's intentions.